When Roswaal happily tells the story of how his romance with Echidna began 400 years ago, Beatrice rebukes him for casually calling it a "romance." Ryuzu interrupts to comment that Echidna saved her, as well. The one thing these three very different people share is their gratitude toward Echidna. But their days spent in both amicable and argumentative conversation about Echidna are brought to an end by one man's arrival.
That's why Roswaal-sama 
has sacrificed so much.
لهذا ضحّى روزوال-ساما بالكثير
Darum hat Herr Roswaal
sich so aufgeopfert.
El señor Roswaal se sacrificó tanto
El señor Roswaal se sacrificó tanto
Si maître Roswaal s’est tant épuisé
à la tâche,
È per questo che il nobile Roswaal
ha sacrificato tanto.
É por isso que o Roswaal-sama se sacrificou.
Его светлость так отчаянно сражался,